Ignore JS-style comments during parse

[marvinhagemeister]

This PR enhances htm's parser to detect and ignore JS-style comments, similar to JSX.

// Multi line
html`<div
	/* I'm ignored */
    id="foo" />`

// Single line
html`<div
  // I'm ignored
  id="foo" />`

Fixes #213

[github-actions[bot]]

Size Change: +248 B (+3%)

Total Size: 8.38 kB

Filename	Size	Change
./dist/htm.js	729 B	+51 B (+8%)	🔍
./dist/htm.mjs	696 B	+50 B (+8%)	🔍
./mini/index.js	577 B	+49 B (+9%)	🔍
./mini/index.mjs	533 B	+50 B (+10%)	⚠️
./preact/standalone.mjs	5.35 kB	+48 B (+1%)

ℹ️ View Unchanged

Filename	Size
./preact/index.js	145 B
./preact/index.mjs	117 B
./react/index.js	128 B
./react/index.mjs	99 B

_{compressed-size-action}